Gas scrubber and washer.



PATENTED JUNE 16, 1908.

J. SHERMAN. GAS SGRUBBER AND WASHER.

APPLICATION FILED MAR. 18, 1908.

- INVENTOR llllllillllllll ununi AAA/AA nlhllilllllllllllllllllWITNESSES ATTORNE ATN@ OFFIQE.

JOHN SHERMAN, OF GRASS VALLEY, CALIFORNIA.

GAS SCRUBBER AND WASI-IER.

To all whom it may concern:

Be it known that I, JOHN SHERMAN, a citizen of the United States,residing at Grass Valley, in the county of Nevada and State ofCalifornia, have invented new and 4useful Improvements in Gas Scrubbersand Washers, of which the following is a specification.

My invention relates to apparatus for scrubbing and washing illuminatingor other gas. p

The object of this invention is to provide an apparatus of thischaracter which may be easily and cheaply manufactured and installed,which is permanent and practicable, which will reduce the quantity ofwater necessary over what is used under former processes, which willreduce the expenses of purifying, which will reduce the amount of oxids,which will eliminate the gas-fitter unstopping services, which willeffect a saving on meter expenses, and in which apparatus there are noabsorbent elements on which the heavy substances, such as tar andlampblack, will cling, but which substances, on

- the other hand, will find their way to the bottom of the scrubber,from which they may be easily removed.

The invention consists of the parts and the construction and combinationof parts as hereinafter more fully described and claimed, havingreference to the accompanying drawings, in which-q Figure 1 is alongitudinal section. Fig. 2 shows one form of a spacing bar. Fig. 3shows another form of a spacing bar. Fig. 4

is a section on line X-X, Fig. l.

A represents a cylinder or tank of any suitable size, shape andmaterial. The bottom of this tank or cylinder is adapted to contain abody of water, as 2. y

3 is an inlet through which the gas is admitted to the cylinder throughthe body of water, and 4 is a gas outlet at the top of the tank.

The invention resides in arranging alternating series of A-shaped bafiieor scrubber elements 5 within the cylinder in such fashion that the gas,in passing from the water to the outlet 4, will be required to travel intortuous paths through and among the scrubbers, and lthe ascending gaswill strike the hollow part of each individual scrubber elementand`collec't therein the tar and lampblack and other heavy substances,so that the gas which issues from the holder A will have been cleansedof practically all these Specification of Letters Patent.

Application filed March 18, 1908.

Patented .Tune 16, 1908.

Serial No. 421,787.

heavy substances, and most of its other impurities. These baffles 5 arepreferably made of sheet-metal, and closed at the ends, and are arrangedin the form of trays, one disposed on top of the other, the baffles inone tray running at right angles to those immediately above and below.The baffles in each tray are suitably spaced apart to permit the freecirculation of gas between them, and the bafiies are so placed in thescrubber as to break joints, and cause the maximum circulation of thegas through these trays.

The baffles in one tray may be all connected together by a surroundinghoop or band, as shown in Fig. L, for the purpose of maintaining themequidistant apart; or the individual bafiie members, cut to properlength and closed at the ends, may be laid in loose and maintained atuniform distances apart by suitable means, as the notched spacing bars6', Fig. 3. Y

Above the baflies is disposed a spray nozzle 7 adapted to discharge aspray down on top of the trays, and the water thus directed downwardstrikes the roof-like baffles composing the trays, dividing up thestreams into numerous cascades through which the gas must pass upward.These various baffles divide the scrubber up in such a way as to coverevery part of the cross-section of the scrubber, 'thus making every partof the water do its work, thereby saving a great deal of water, andaffording additional cooling advantages, since the water cools the metalthat the gas has to come in contact with, as well as cooling the gasitself.

When the trays are once installed they are practically indestructible,and therefore very economical of maintenance. ,They will last for years,since they require no attention, and do not have to be moved forcleaning; steam and hot water being all that is necessary thoroughly toclean them while in place.

The pitch of thebaii'les is such that the lampblack and other materialswill not stick to them, but will drop through and be collected in thebottom of the tank. In fact, they make an ideal tar extractor, whenproperly set in suflicient quantity, and no tar will go over to stop upthe service pipes and jets.

By the use of a scrubber of this construction it is possible to do awaywith the relief holder, since the gas is thoroughly cooled and ready forthe purifiers as it is being made.

rlhe cooling process is gradual, and is made perfect on account of thethorough circulation of both Water and gas; this circulation avoidingstreaks of hot gas and cold gas.

Having thus described my invention, What 'I claim and desire to secureby Letters Patent isl. A gas Washer and scrubber comprisinga casinghaving a gas inlet at the bottom and a gas outlet at the top, and aseries of scrubbing trays in the casing between the inlet and outlet,said trays consisting of spaced A-shaped baille members, the bafflemembers in one tray running transverse to the baffle members in theimmediately succeeding tray, and means for discharging a Water sprayupon the trays.

2. A gas Washer and scrubber comprising a casing having a gas inlet atthe bottom and a gas outlet at the top, and a series of scrubbing traysin the casing between the inlet and outlet, said trays consisting ofspaced A- JOHN SHERMAN.

Witnesses:

C. H. STAGER, DON C. RAY.

